XXX Power Supply Company of Southern Power Grid

In daily inspections, using an infrared acoustic two in one imaging instrument, it was found that there was significant heating in the A-phase clamp above the 10kV transformer, and a clear infrared pyrogen signal was detected on site. The positioning point and discharge position are shown above, and the maximum heating value measured is 38 ℃. After careful observation with a high-definition camera, it was found that the A-phase clamp has obvious loose and poor contact. Currently, continuous tracking is being carried out on this point, and maintenance is planned for the next planned power outage.